Thanks. I enjoy your video's. My son and I have been fixing electronics for friends and family for a long time. Mostly broken connectors or screen replacements. Since I have been watching your videos we have purchased a hot air station, dc bench power supply, better soldering iron and microscope. We have fixed a lot of items that we couldn't figure out in the past. I usually start my day looking for one of your videos and watch it while I have my coffee. Thanks for all the effort you put into your work and videos. Leo
The owner of the card must have been sweating bullets! So glad that you were able to fix it, you made the owner's day for sure. Great video and, as always, great fix. 😎
4:30 Heat from a current sense resistor is likely because the resistor is between the short and the voltage injection site in the circuit. Inject voltage after that resistor and a new point will heat up.
I cant mention it not enough! You're awesome, honest and you always try to involve folks, to be a parts of saving our planet with repairs. Man, just awesome! And i dont have to mention your skills :D You proofed it, more than often! Thank you and please use the continue mode for your vids :)
Thanks for taking the time to make these videos. Even with the know how to do this myself, watching your videos has saved me hours of time troubleshooting. Thank you for teaching us your diagnostic process.
Love your video's! That cheap microphone sounded surprisingly good. It only had a small "lisp" but otherwise great sound. Best repair content I ever seen!
Amazing video as always. Very pleasant to watch and every time interesting repairs! No unnecessary rambling on about what you had for lunch or something like that like many other channels do. And the genuine joy of the work, you really get a kick out of successful repair. Please do a video about the hot air stations. Greets from Finland!
thanks for the video, I mentioned your channel over at LTT, hopefully it brings in some more viewers, they did a video on bad graphics cards and I said your channel is the best for repair videos.
Thank you for your comment in the forms and helping me come to a educated decision on what hot air station I should look into!. Keep up the great work as always!!!
IKR? LTT's repair was HORRIBLE. Linus has a huge team of guys and it seemed like they barely knew what they were doing. It's just my man here and Big Boss and they do a FAR better and more interesting job than LTT. I'm not crapping on LTT. I like those guys, but their lack of skill in GPU repair was obvious. LTT made me laugh when they brought up Linus' oven reflow method video. The exact same video that Louis Rossmann took Linus to task on years ago prompting Linus to go to New York and visit Louis when Louis was at his old shop. I think Linus should invite Northridgefix to his show.
i was living in lebanon for a few months, and i remember the electricity used to cut off every few hours. I remember across the rd there was his guy that would make batteries and his own circuits to power lights tv and house power goes down. reminds me of how smart people can be
Something strange happened there for sure. I've usually only seen this "popcorning" happen with PCBs when there is moisture trapped in them that expands to steam from heating. Something similar may have happened with this MOSFET/powerstage due to gasses trapped in the package material. But clearly it seems to not have affected the device functionally.
The faulty chip was a Texas Instruments CSD95481RWJ Smart Power Stage, which is an integrated driver and MOSFET. The replacement appears to be an ON Semiconductor NCP303150 Smart Power Stage. The have the same board footprint, but not the exact same pinout. I'm curious how you knew the replacement chip was compatible with this application.
@@bkaczy I did compare the data sheets, which is how I knew the pinouts we're slightly different. I'm not great at reading data sheets beyond some basic info, though, so there probably something I missed
@@knw257 Yes, the pinout is not the same, but the size is identical, and important pins are equal placed. So there is a moment when electronic knowledge is helpful
Prolly he got experienced enough by working on so much gpu, and found on that different brand use that different mosfet chip on same gen gpu with same PCB layout
At 13:45, when soldering on the new mosfet, are my eyes tricking me, or is the heat making the top layer of the mosfet packaging blister up for a brief second? That must be immensely hot - can't be much headroom before components are damaged at those temperatures, right?
Outstanding video. Doubly so because I have the EXACT same GPU card with the EXACT same problem. What are the chances of that! The only difference is, the trouble spot is a short indicated at coil L249 rather than L250 as in this video. The capacitor associated with this coil is also showing a short. The MOSFet on mine is a NCP 303151 rather than the 303150 here. I was going to do the repair myself because I'm experienced in electronics and repair, but my experience and tools are for vacuum tube equipment and through mount electronics. Yes, I'm old. Lol. I figured out that me buying a hot air station, thermo camera, and other associated supplies needed to repair surface mount electronics at my age and eyesight capabilities just wasn't worth it. So I sent in a service quote request to these guys at Northridge so we'll see how much it's going to cost me for the repair this beast.
Onde consigo o boardview ou esquema eletrico dessa placa de video, tenho uma e ao recolocar o dissipador arrenquei 2 pequenos componentes, e desde então a placa apresenta artefatos.
I have an idea for finding shorts: You put magnetic suspension for looking at magnetic fields near pcb and inject current. It should trace the current path.
FYI at 13:43 you can see the new chip bubble up from the heat. This new chip may not live long. Surprised it even works. It's hard to solder these mosfets on such a thick board with pads that don't have any thermal relief.
Really great, thank you for the video. Great job. Don't matter which microphone you use. Sure the soundquality is very different. But better a cheap microphone than nothing. I love your work. Greets
Greetings to all. Where do I start? Hm! Well, educational, instructional, and absolutely beneficial to the great many individuals who have watched and continue to watch the fantastic videos you have shared. You Sir are responsible for changing lives al over the world. How do you say? Well, men young and old, countless, have acquired fundamental and advanced skills by watching your instructional and educational videos. Men are now perfecting skills fixing things they previously knew nothing about. Thanks for always sharing. God's richest blessings to you and your family.
@NorthRidgeFix how do you feel about trying to fix my RadeonVII. Main symptom is it wont allow the computer to POST with the card installed. It just shows a black screen with a blinking cursor. Take the RadeonVII out and the computer boots normally.
Hello sir. There is a trend about undervolting graphics cards. Feeding them less volts than manufacturers intented seemingly makes them perform the same, use less power and create less heat. Do you think this could create any issues?
More often than not, those factory voltage settings are to ensure stability across all made Graphics Cards from a manufacturer. Undervolting only reduces the amount of core voltage which goes to the main processing chip on the graphics card. On paper, this can cause stability issues but should not cause any damage to the components on the PCB of the graphics card. Feeding too little voltage to the core should generally speaking not be able to cause issues which kills a GPU.
hi, dont worry it's 100% safe, the term undervolted is a bit miss represented here tho. if I remember correctly, the real term for what you say is called clock stretching which is setting the highest clock possible at a desired voltage. Your cpu/gpu is already running at those range of voltage from factory but most likely higher than what you want/need, since they are mass producted they're applying more voltage than they need just so that 99.9% of them work without issue out of factory because all silicone chip are created different with their own imperfection and it would be costly for them to test each individual chip.
Thanks, i enjoy watching your videos, and i have 2 question, ones what is the model of the thermal cam that you use, and i see some osilascopes on the shelf next to you , for what do you use it for?
Any idea how old the 3080 is? It's ashame it's already failed. Has customer give any idea what may have caused it. I guess like u said these parts fail.
salam,Question please from a big fan, i have problem with alienware m15 r6 but the short is inside motherboard layer !!!! i never see video for this kind of problem, do you have any advise? when i remove the mosfet i find that the short is under it inside layer :) when i inject voltage a have smoke coming out from it
Hi, I have the exact same problem with my 6 year old MSI Gaming X 1070 - PC won't power on if the GPU is plugged in. I don't have the skill or tools to attempt this repair on that card and nobody local (Scotland) is willing to look at it.
good evening, can I ask you for help? I'm trying to find and understand an error from the debug leds of my 3080 strix 10gb, although I can start the pc the right led keeps flashing, I'm trying to understand (this happened to me after installing the water block), I tried with more corsair type 4 pcie cables both original and optional kit but the result does not change, I don't know whether to blame the SF750, or if it could have been my mistake in arranging the thermal pads and maybe the graphics chip does not adhere well to the WB and it autolimits the gpu load, thank you, i hope you can help me :)
That mosfet you changed looks very different - far more complex to anything I've seen in previous videos. Is that specially for GPU's or is that 2 packages in one or something? Great work. It shows the benefit of the infrared camera - a real time saver. Trying to find that manually would of been more time consuming and difficult.
It was still a 3 terminal device, just in a different IC package. If you look at the pins you’ll see that there are three groups connected together, and a copper pour on the bottom to connect it to the ground plane for heat dissipation. The larger package allows more heat dissipation and thus a FET that can handle more current going through it.
Thanks. I enjoy your video's. My son and I have been fixing electronics for friends and family for a long time. Mostly broken connectors or screen replacements. Since I have been watching your videos we have purchased a hot air station, dc bench power supply, better soldering iron and microscope. We have fixed a lot of items that we couldn't figure out in the past. I usually start my day looking for one of your videos and watch it while I have my coffee. Thanks for all the effort you put into your work and videos. Leo
The owner of the card must have been sweating bullets! So glad that you were able to fix it, you made the owner's day for sure. Great video and, as always, great fix. 😎
I know he's got a back order of GPU's. I wonder how long this one has been waiting.
@@noname-oe9jy I forgot about that! Alex didn't mention it was expedited, so I assume the owner has been waiting for a while
Thank you for the extra effort you put into making content for UA-cam, it is both entertaining and educational!
4:30 Heat from a current sense resistor is likely because the resistor is between the short and the voltage injection site in the circuit. Inject voltage after that resistor and a new point will heat up.
That's awesome that you created a forum. I'd wager it's going to grow like crazy.
I cant mention it not enough! You're awesome, honest and you always try to involve folks, to be a parts of saving our planet with repairs. Man, just awesome! And i dont have to mention your skills :D You proofed it, more than often! Thank you and please use the continue mode for your vids :)
You can´t mention it not enough? Ahhh, yes....
I love GPU repair video. Thank you for your effort!
you rekindled my passion towards something in life i forgot how much i used to love working with electronics
Thanks for taking the time to make these videos. Even with the know how to do this myself, watching your videos has saved me hours of time troubleshooting. Thank you for teaching us your diagnostic process.
Hey man, I just wanted to say that you always sound like a GOAT - Greatest (electronics repair guy) Of All Time!
thanks Alex I really appreciate your time, effort, skills and patience with. I am grateful for you taking the time to enlighten us with your skill.
You sound like a pilot speaking from the cockpit, I truly enjoyed your content. :)
Love your video's! That cheap microphone sounded surprisingly good. It only had a small "lisp" but otherwise great sound. Best repair content I ever seen!
Amazing video as always. Very pleasant to watch and every time interesting repairs! No unnecessary rambling on about what you had for lunch or something like that like many other channels do. And the genuine joy of the work, you really get a kick out of successful repair.
Please do a video about the hot air stations. Greets from Finland!
thanks for the video, I mentioned your channel over at LTT, hopefully it brings in some more viewers, they did a video on bad graphics cards and I said your channel is the best for repair videos.
Thank you for your comment in the forms and helping me come to a educated decision on what hot air station I should look into!. Keep up the great work as always!!!
Everyone loves that great smile. Once again a very good job
We have a forum wow that's wonderful keep it up man 👍
Education at best! Thank you for making it so much detailed!
I am learning a lot from you brother, your patience, your confidence, and your alertness... I love you very much.. thank you brother.. 💕🙏🏻
Much more entertaining than LinusTech Tips recent Video of GPU repair
IKR? LTT's repair was HORRIBLE. Linus has a huge team of guys and it seemed like they barely knew what they were doing. It's just my man here and Big Boss and they do a FAR better and more interesting job than LTT. I'm not crapping on LTT. I like those guys, but their lack of skill in GPU repair was obvious. LTT made me laugh when they brought up Linus' oven reflow method video. The exact same video that Louis Rossmann took Linus to task on years ago prompting Linus to go to New York and visit Louis when Louis was at his old shop.
I think Linus should invite Northridgefix to his show.
Should make a vid fixing a psu too. Thanks for sharing your knowledge on a regular basis.
The joy on alex face make me feel happy for a moment
i was living in lebanon for a few months, and i remember the electricity used to cut off every few hours. I remember across the rd there was his guy that would make batteries and his own circuits to power lights tv and house power goes down. reminds me of how smart people
can be
Just saved one of the most beautiful cards ever, good job
Arguable but it is an expensive piece of gear atm, glad for the owner
@@ij6708 Hehe true true
Awesome. The "cheap" headset worked just fine, Alex. Viewers like me are into the story and after a minute or two didn't pay attention to it.
One of the best repair vids ever, thanks I really enjoyed it!! Repairs that require you to be the sleuth are the best type in my view.
good job man wish we have a guy like your in france
13:44 is that mosfet bulged from over-heat?
Something strange happened there for sure. I've usually only seen this "popcorning" happen with PCBs when there is moisture trapped in them that expands to steam from heating. Something similar may have happened with this MOSFET/powerstage due to gasses trapped in the package material. But clearly it seems to not have affected the device functionally.
The faulty chip was a Texas Instruments CSD95481RWJ Smart Power Stage, which is an integrated driver and MOSFET. The replacement appears to be an ON Semiconductor NCP303150 Smart Power Stage. The have the same board footprint, but not the exact same pinout. I'm curious how you knew the replacement chip was compatible with this application.
That is the experience and knowledge of Mr Alex! All you have to do is compare datasheets...
@@bkaczy I did compare the data sheets, which is how I knew the pinouts we're slightly different. I'm not great at reading data sheets beyond some basic info, though, so there probably something I missed
@@knw257 Yes, the pinout is not the same, but the size is identical, and important pins are equal placed. So there is a moment when electronic knowledge is helpful
Prolly he got experienced enough by working on so much gpu, and found on that different brand use that different mosfet chip on same gen gpu with same PCB layout
Awesome video with another success yet again. We love to see them. To many more successful repairs!
Your replacement (temporary?) headset has a good microphone. You sound absolutely fine through it.
13:44 what happed there the MOSFET fail the top is moving ?
Man that guy is a legendary legend
legend you make repairs look so easy.
Awasome as always!!! Every time I learn something new.
Side: Fix your own mic cable and post it just for fun?
At 13:45, when soldering on the new mosfet, are my eyes tricking me, or is the heat making the top layer of the mosfet packaging blister up for a brief second? That must be immensely hot - can't be much headroom before components are damaged at those temperatures, right?
You’re right, it’s better seen at 13:44. This is too hot.
wish i could give extra thumbs up everytime you fix an expensive item like this! good job!!
Really good idea thanks for Northbridfix
Outstanding video. Doubly so because I have the EXACT same GPU card with the EXACT same problem. What are the chances of that! The only difference is, the trouble spot is a short indicated at coil L249 rather than L250 as in this video. The capacitor associated with this coil is also showing a short. The MOSFet on mine is a NCP 303151 rather than the 303150 here. I was going to do the repair myself because I'm experienced in electronics and repair, but my experience and tools are for vacuum tube equipment and through mount electronics. Yes, I'm old. Lol. I figured out that me buying a hot air station, thermo camera, and other associated supplies needed to repair surface mount electronics at my age and eyesight capabilities just wasn't worth it. So I sent in a service quote request to these guys at Northridge so we'll see how much it's going to cost me for the repair this beast.
Nice work.
Sounds like you may have frayed the wire when you stood up, hence the noise. I'm sure you can fix. ;)
Looking forward at the video about hot air stations as I am in the market for one.
#1 as always. Very helpful and very informative.
Amazing as always Alex! Keep the good work!
I have a question after the job is done do you stress test graphics cards?
Onde consigo o boardview ou esquema eletrico dessa placa de video, tenho uma e ao recolocar o dissipador arrenquei 2 pequenos componentes, e desde então a placa apresenta artefatos.
Thanks for sharing a big thumbs up from Sweden
13:43 the replacement chip popcorned (which means it overheated during hot air soldering and deformed)
Thats awesome. Ive just ordered a thermal camera. they pay for themselves many times over.
Great work as always Alex. 🤘
Very nice, no doubt you made someone very happy.
Great stuff. Would like to see more GPU repairs.
Always watching sir!good job!
I have an idea for finding shorts:
You put magnetic suspension for looking at magnetic fields near pcb and inject current. It should trace the current path.
Northridge: Its better than factory
Asus: F$ck that guy.
FYI at 13:43 you can see the new chip bubble up from the heat. This new chip may not live long. Surprised it even works. It's hard to solder these mosfets on such a thick board with pads that don't have any thermal relief.
Absoluter Profi !
I have learnt a lot from you thanks for sharing precious knowledge
love your vids, keep up the amazing work!
Lol.. Hows the work in the Call Center today? 😆 Great job btw!!!
How often do you change batterys in that Fluke multimeter?
You are perfect man 👍 , good job
how does a card this new not have an option for RMA?? glad you were able to take care of it
Thanks for the upload.
This is really educational...I love learning this kind of repair....any training course available?
12:08 what is the purpose of applying flux on the solder?
So it flows better.
Really great, thank you for the video. Great job. Don't matter which microphone you use. Sure the soundquality is very different. But better a cheap microphone than nothing. I love your work. Greets
Why does voltage injection heat up the short?
Yes please do a video on hot air stations!
Love these videos. Nice work. I wish I had this skill 👍
Amazing work brother 👍
What is that software for recovery on the bootable drive? The one you booted up?
How do you know with what kind/type of mosfet the chip can be replaced?
Greetings to all. Where do I start? Hm! Well, educational, instructional, and absolutely beneficial to the great many individuals who have watched and continue to watch the fantastic videos you have shared. You Sir are responsible for changing lives al over the world. How do you say? Well, men young and old, countless, have acquired fundamental and advanced skills by watching your instructional and educational videos. Men are now perfecting skills fixing things they previously knew nothing about. Thanks for always sharing. God's richest blessings to you and your family.
Would love to see a video on different stations
@NorthRidgeFix how do you feel about trying to fix my RadeonVII. Main symptom is it wont allow the computer to POST with the card installed. It just shows a black screen with a blinking cursor. Take the RadeonVII out and the computer boots normally.
Hello sir. There is a trend about undervolting graphics cards. Feeding them less volts than manufacturers intented seemingly makes them perform the same, use less power and create less heat. Do you think this could create any issues?
I'll wait for answers too 🙏
More often than not, those factory voltage settings are to ensure stability across all made Graphics Cards from a manufacturer.
Undervolting only reduces the amount of core voltage which goes to the main processing chip on the graphics card.
On paper, this can cause stability issues but should not cause any damage to the components on the PCB of the graphics card.
Feeding too little voltage to the core should generally speaking not be able to cause issues which kills a GPU.
hi, dont worry it's 100% safe, the term undervolted is a bit miss represented here tho. if I remember correctly, the real term for what you say is called clock stretching which is setting the highest clock possible at a desired voltage. Your cpu/gpu is already running at those range of voltage from factory but most likely higher than what you want/need, since they are mass producted they're applying more voltage than they need just so that 99.9% of them work without issue out of factory because all silicone chip are created different with their own imperfection and it would be costly for them to test each individual chip.
No. It's simply better silicon or a better bin. Keep them cool and they will last even longer than usual.
Awesome job bro keep rocking bro 👍👍👍
You are amazing man👊👊
The cheap mic look great 👍
com certeza foi um defeito de fonte do dona da placa, ele vai ter que ficar esperto ai se nao vai dar problema de novo like ai fera 👍👍
Love your content sir, i am really appreciate it.
Thanks, i enjoy watching your videos, and i have 2 question, ones what is the model of the thermal cam that you use, and i see some osilascopes on the shelf next to you , for what do you use it for?
damn was just wondering when is Northridgefix's next GPU repair vid.
Any idea how old the 3080 is? It's ashame it's already failed. Has customer give any idea what may have caused it. I guess like u said these parts fail.
salam,Question please from a big fan, i have problem with alienware m15 r6 but the short is inside motherboard layer !!!! i never see video for this kind of problem, do you have any advise?
when i remove the mosfet i find that the short is under it inside layer :) when i inject voltage a have smoke coming out from it
Hi, I have the exact same problem with my 6 year old MSI Gaming X 1070 - PC won't power on if the GPU is plugged in. I don't have the skill or tools to attempt this repair on that card and nobody local (Scotland) is willing to look at it.
We did it!
Great job Sir.
good job mate.
15:13 smile of success
Hi, what flux you apply and what chemical you put on cotton bud for cleaning?
northridgefix.com/product/amtech-nc-559-v2-tf-flux-10ml-syringe-plunger-2-needle-sizes/ . I use 99% isopropyl alcohol for cleaning. 91% is also good.
Nice work!
good evening, can I ask you for help? I'm trying to find and understand an error from the debug leds of my 3080 strix 10gb, although I can start the pc the right led keeps flashing, I'm trying to understand (this happened to me after installing the water block), I tried with more corsair type 4 pcie cables both original and optional kit but the result does not change, I don't know whether to blame the SF750, or if it could have been my mistake in arranging the thermal pads and maybe the graphics chip does not adhere well to the WB and it autolimits the gpu load, thank you, i hope you can help me :)
That mosfet you changed looks very different - far more complex to anything I've seen in previous videos. Is that specially for GPU's or is that 2 packages in one or something? Great work. It shows the benefit of the infrared camera - a real time saver. Trying to find that manually would of been more time consuming and difficult.
It was still a 3 terminal device, just in a different IC package. If you look at the pins you’ll see that there are three groups connected together, and a copper pour on the bottom to connect it to the ground plane for heat dissipation. The larger package allows more heat dissipation and thus a FET that can handle more current going through it.
It's a DrMOS, which combines two mosfets and a driver into one package.
Great job 👍👍
Wonder why they didnt Rma it the cards have a 3 year warranty ? 3090 of mine that died was Rma and replaced in 2 weeks
Great job.
Why dont you Check the Repaired Phase with the oscilloscope ? Maybe there is Reason why the DRmos Broke.
that heat spot was hiding very well lol